/**
 * @fileoverview Implements the database import logic for Neo4j.
 * @module src/services/neo4j/backupRestoreService/importLogic
 */
/**
 * Imports data from JSON files, overwriting the existing database.
 * Can import from either full-export.json (if it exists) or individual entity files.
 * @param backupDirInput The path to the directory containing the backup JSON files.
 * @throws Error if any step fails or if the backup directory is invalid.
 */
export declare const _importDatabase: (backupDirInput: string) => Promise<void>;